[sdw] New Project proposal: 360 Day Calendar

6a6d74 has just created a new issue for https://github.com/w3c/sdw:

== New Project proposal: 360 Day Calendar ==
The W3C SDW WG deliverable and W3C Recommendation [Time Ontology in OWL](https://w3c.github.io/sdw/time/), since its publication in October 2017, has some evidence of usage, both novel and to replace the previous 2006 version. One (or more?) minor correction is also being discussed and resolved - see the [Time ontology amendments Project](https://github.com/w3c/sdw/projects/5).

This proposal is to construct a simple ontology and notation to use in conjunction with the Time Ontology in OWL to allow climate and earth system scientists to annotate climatological datasets that have used a 360 day approximation to the internationally established Gregorian calendar. 

The 360 day calendar allows easy calculations of monthly and quarterly statistics, as all 'months' have 30 days. Comparison of simulated monthly statistics is not good practice as the errors in the number of days is of the order of 10%, whereas errors of comparing quarters is of the order of 1 or 2%.
How to map individual days or weeks, or even 'month's, to the real-world Gregorian months will not be specified, as this depends on the science and assumptions of the scientific experiments being undertaken.

It is envisaged that:

1. some terminology will be needed to distinguish the 'calendar' from others, and the names of the 'month's; and 
1.  the experience of this work will contribute to developing other 'real-world' calendar ontologies used by different communities, again building on the underpinning Time Ontology in OWL.

Please view or discuss this issue at https://github.com/w3c/sdw/issues/1067 using your GitHub account

Received on Wednesday, 8 August 2018 13:16:52 UTC